.about_banner {
    width:100%;
    height: 350px;
    /* max-height: 34vh; */
    background: url("../images/about_banner.jpg") no-repeat;
    background-size: 100% 100%;
    margin-top: 70px;
}
.about_content {
    margin: 0 auto;
    width: 50%;
    box-sizing: border-box;
    display: flex;
    padding-top: 100px;
    text-align: center;
    justify-content: center;
    flex-direction: column;
}
.about_content h3 {
    font-weight: 400;
    font-size: 24px;
    line-height: 35px;
    color:#666;
    margin-bottom: 20px;
}
.about_content p {
    font-family: 微软雅黑;
    font-size: 16px;
    color: rgb(170, 170, 170);
    line-height: 30px;
}
.about_content {
   box-sizing: border-box;
   
}

.about_content img {
    display: block;
    margin: 20px 0px;
}
.about_content2 {
    margin: 0 auto;
    width: 50%;
    box-sizing: border-box;
    display: flex;
    padding-top: 100px;
    text-align: center;
    justify-content: center;
    flex-direction: column;
}
.about_content2 h3 {
    font-weight: 400;
    font-size: 24px;
    line-height: 35px;
    color:#666;
    margin-bottom: 20px;
}
.about_content2 p {
    font-family: 微软雅黑;
    font-size: 16px;
    color: rgb(170, 170, 170);
    line-height: 30px;
}
.about_content2 {
   box-sizing: border-box;
   display: flex;
   flex-direction: row;
}

.about_content2 img {
    display: block;
    width: 38%;
    margin: 20px 0px;
}
.desc_icon {
    width: 70%;
    margin: 90px auto;
    
}
.desc_icon div  {
   width:33.33%;
   float:left;
   display: flex;
   justify-content: center;
   flex-direction: column;
   align-items: center;
}
.desc_icon div div {
    width: 100%;
}
.desc_icon div p:nth-of-type(1) {
    line-height: 40px;
    font-size: 18px;
    text-align: center;
    color: rgb(33, 33, 33);
    margin: 20px 0px;
}
.desc_icon div p:nth-of-type(2) {
    color: rgb(102, 102, 102);
    font-size: 16px;
    text-align: center;
}
.desc_icon div  img {
    display: block;
    width: 95px;
    height: 95px;
}
@media only screen and (max-width: 1600px){

}
@media only screen and (max-width: 1440px){
	
}
@media only screen and (max-width: 1366px){
	
}
@media only screen and (max-width: 1300px){
	
}
@media only screen and (max-width: 1199px){
	
}
@media only screen and (max-width: 992px){
    .about_content {
        width: 100%;
        padding-top:38px;
    }
    .desc_icon {
        margin: 60px auto;
    }
}
@media only screen and (max-width: 930px){
	.about_banner {
        max-height: 30vh;
    }
}
@media only screen and (max-width: 767px){
    .carousel-content,.h600 {
		max-height: 34vh;
    }
    .about_content {
        padding-top: 30px;
    
    }
    .about_content img {
        max-height: 34vh!important;
    }
    .about_content2 {
        flex-direction: column;
        width: 100%;
        padding: 5px;
        box-sizing: border-box;
    }
    .about_content2 img {
        width: 100%;
        max-height: 28vh;
    }
    .about_content2 div {
        width: 100%;
    }
}
@media only screen and (max-width: 736px){
    .desc_icon {
        width: 96%;
        margin-top: 10px;
        margin-bottom: 0px;
    }
	.desc_icon > div {
        width: 50%;
        box-sizing: border-box;
       padding: 0px 1%;
    }
    .desc_icon > div:nth-of-type(3) {
        margin-top:30px;
    }
}
@media only screen and (max-width: 700px){
	
}

@media only screen and (max-width: 620px){

}
@media only screen and (max-width: 340px){
 
}
@media only screen and (max-width: 320px){
	
}